how to check if an element is in a set in swift

To check if an element exists in a set in Swift, you can use the contains method of the Set type. Here's an example:

main.swift
let mySet: Set<String> = ["apple", "banana", "orange"]

if mySet.contains("banana") {
    print("The set contains 'banana'")
} else {
    print("The set does not contain 'banana'")
}
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In this example, we first create a Set called mySet that contains three String values. We then use the contains method to check if the set contains the String "banana". If it does, we print a message to the console confirming that the set contains the element. If not, we print a message saying that the set does not contain the element.